CN210843090U - Disposable cystometry extension tube - Google Patents

Abstract

The utility model discloses a disposable bladder pressure measurement extension tube, which comprises a connecting tube main body, a catheter joint and an injector joint; the catheter joint is connected with the catheter, and the injector joint can be connected with the injector; the joint of the connecting section of the catheter joint and the catheter is a conical surface; the axial opening of the connecting section is beneficial to the connecting section to extend into the catheter, and the connecting section is slightly larger than the catheter and is provided with the axial opening, so that the connecting section can be tightly attached to the inner wall of the catheter after extending into the catheter, and the connecting section is more tightly connected with the catheter; the positioning section can indicate whether the catheter joint completely extends into the catheter or not, and the positioning section is pressed to facilitate the connection of the operation connecting section and the catheter; the pressure scale marks arranged on the connecting pipe main body can directly reflect the pressure value, so that inconvenience in measurement of the handheld ruler is avoided, and infection caused by repeated use of the ruler is reduced.

Description

Disposable cystometry extension tube

technical field

The utility model belongs to the technical field of medical devices, in particular to a disposable bladder pressure measurement extension tube.

Background technique

Intra-abdominal pressure is the pressure inside the abdominal cavity and is one of the important physiological parameters for clinical diagnosis and treatment of diseases. Intra-abdominal pressure measurement methods include direct measurement and indirect measurement. The direct measurement method is to measure the pressure through the abdominal drainage tube or the puncture needle connected to the sensor, and the measurement value is accurate, but this method is an invasive method and is rarely used clinically; the indirect measurement method is to measure the inferior vena cava pressure, intragastric pressure, Rectal or bladder pressure to indirectly reflect intra-abdominal pressure. Among them, intravesical pressure measurement is the most widely used method in clinical practice, and it is also the gold standard for intra-abdominal pressure measurement. When measuring intra-abdominal pressure by this method, there is no dedicated pressure measuring tube, so it is usually necessary to cut the connecting tube on the urine bag or other drainage device, connect the catheter at one end, and connect the syringe at the other end to inject normal saline, and then measure the pressure. , which is inconvenient to operate and increases the chance of urinary tract infection, and causes waste of urine bags and the like. Therefore, there is an urgent need for a dedicated and easy-to-operate bladder pressure measuring device.

Utility model content

In order to solve the above-mentioned technical problems, the disposable bladder pressure measurement extension tube provided by the utility model can be tightly connected with a urinary catheter joint at one end and a syringe at the other end, and can intuitively respond to pressure, and is safe and convenient to operate.

The disposable bladder pressure measurement extension tube includes a connecting tube main body, a catheter joint arranged at one end of the connecting tube main body, and a syringe joint arranged at the other end of the connecting tube main body, the catheter joint comprising a positioning section and A connecting section for connecting a urinary catheter, one end of the positioning section is connected to one end of the main body of the connecting tube, the outer surface of the connecting section is a tapered surface, and the large end of the connecting section is connected to the positioning section The other end of the catheter is connected to the other end, the connection of the catheter is a conical hole, the size of the large end of the connecting section is equal to the size of the large end of the conical hole, and the size of the small end of the connecting section is larger than the size of the conical The size of the small end of the hole, the outer diameter of the positioning section is larger than the size of the large end of the connecting section, the connecting section is provided with three openings along the axial direction from the small end, and the main body of the connecting pipe is provided with Pressure scale identification.

Preferably, in the above technical solution, annular protrusions are uniformly distributed on the outer surface of the connecting section along the axial direction.

Preferably, in the above technical solution, a plurality of arc-shaped protrusions are evenly distributed on the outer surface of the connecting section.

Preferably, in the above technical solution, the positioning section is provided with an external thread, and the first cap covers the catheter joint and is threadedly connected to the positioning section.

Preferably, in the above technical solution, an indicator is provided on the main body of the connecting pipe perpendicular to the zero point of the pressure scale mark.

Preferably, the inner diameter of the syringe joint is equal to the outer diameter of the syringe nipple, and the syringe joint is provided with a second cap.

Preferably, in the above technical solution, the outer surface of the syringe joint is provided with an external thread, and the second cap is threadedly connected to the syringe joint.

Preferably, the second cap is provided with a conical plug matching the inner diameter of the syringe connector.

Preferably, in the above technical solution, a switch clip is sleeved on the main body of the connecting pipe, and the switch clip is provided with a wide groove and a narrow groove that communicate with each other.

The advantages and positive effects of the utility model are: the disposable bladder pressure measurement extension tube provided by the utility model includes a connecting pipe body, a catheter joint and a syringe joint; the catheter joint is connected with the catheter, and the syringe joint can Connect with the syringe; the connecting section of the catheter joint and the catheter are conical; the axial opening of the connecting section is conducive to the connecting section extending into the catheter, because the size of the connecting section is slightly larger than that of the catheter and has a shaft Towards the opening, the connecting segment will closely adhere to the inner wall of the catheter after extending into the catheter, making the connection between the connecting segment and the catheter tighter; the positioning segment can indicate whether the catheter joint is fully extended into the catheter, and press to locate It is convenient to operate the connection between the connecting section and the urinary catheter; the pressure scale mark on the main body of the connecting tube can directly reflect the pressure value, which avoids the inconvenience of measuring with a ruler and reduces the infection caused by repeated use of the ruler; a measurement lengthening The tube can not only complete the injection of physiological saline but also complete the pressure measurement, and has a simple structure and is easy to operate.

Description of drawings

1 is a schematic structural diagram of a disposable bladder pressure measurement extension tube provided by an embodiment of the present invention;

2 is a schematic structural diagram of a urinary catheter joint provided by an embodiment of the present utility model;

3 is a schematic diagram of the connection between the urinary catheter joint and the urinary catheter provided by an embodiment of the present invention.

Among them: 1. Main body of connecting pipe; 2. Catheter joint; 3. Syringe joint; 4. First cap; 5. Second cap; 6. Switch clip; 7. Catheter; 11. Pressure scale mark; 12 , indicator; 21, positioning segment; 22, connecting segment; 221, opening; 222, annular protrusion; 31, hook; 51, tapered plug; 61, wide groove; 62, narrow groove.

Detailed ways

It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "horizontal", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility. The novel and simplified description does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first", "second", etc., may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Detachable connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection, or indirect connection through an intermediate medium, or internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

The disposable bladder pressure measurement extension tube provided in this embodiment, as shown in FIGS. 1-3 , includes a connecting tube body 1 , a catheter joint 2 arranged at one end of the connecting tube body 1 , and a Syringe adapter 3. The urinary catheter joint 2 includes a positioning section 21 and a connecting section 22 for connecting the urinary catheter 7 . One end of the positioning section 21 is connected to one end of the connecting tube main body 1 . Because the extension tube has both a liquid injection function and a pressure measurement function, due to the bladder pressure, the physiological saline injected into the bladder flows back into the connecting tube main body 1, so the tightness of the connection between the catheter joint 2 and the catheter is affected. Higher requirements. The outer surface of the connecting section 22 is a tapered surface, the large end of the connecting section 22 is connected with the other end of the positioning section 21, the connection of the catheter is a tapered hole, the large end of the tapered hole is outward, and the tapered hole The small end is connected to the tube body of the catheter. The size of the large end of the connecting section 22 is equal to the size of the large end of the conical hole, the size of the small end of the connecting section 22 is slightly larger than the size of the small end of the conical hole, and the connecting section 22 is provided with three axial openings from the small end. 221. The opening is a rectangular opening; the opening 221 is 4-8 mm away from the large end of the connecting section 22, so that the parts of the connecting section 22 adjacent to two openings form expansion wings. Since the size of the connecting section 22 is slightly larger than that of the urinary catheter connection, after the connecting section 22 extends into the urinary catheter connection, the opening is deformed under pressure, and the connecting section 22 tightens the urinary catheter. The outer diameter of the positioning section 21 is larger than the size of the large end of the connecting section 22 . The main body of the connecting pipe is transparent. The main body 1 of the connecting pipe is provided with a pressure scale mark 11 . The joint of the urinary catheter can be made of rubber material, and the connecting section of the rubber material has elasticity, and the elastic deformation of the connecting section is good during the connecting process, so that the connection between the connecting section and the urinary catheter is more secure.

In the disposable bladder pressure measurement extension tube provided in this embodiment, the catheter connector 2 can be connected to the catheter, and the syringe connector 3 can be connected to the syringe; the connecting section 22 of the catheter connector 2 and the catheter are connected with a cone. shape surface; the axial opening 221 of the connecting section 22 is conducive to the connecting section 22 extending into the urinary catheter, because the connecting section 22 is slightly larger in size than the urinary catheter, the connecting section 22 will closely adhere to the inner wall of the urinary catheter after extending into it, The connection between the connecting section 22 and the urinary catheter is made tighter, and the tightness and tightness of the connection can be ensured; the positioning section 21 can indicate whether the urinary catheter joint 2 is fully extended into the urinary catheter, and the positioning section 21 can be pressed to facilitate the operation of the connection. Section 22 is connected to the catheter; the main body 1 of the connecting pipe is provided with a pressure scale mark 11 that can directly reflect the pressure value, avoiding the inconvenience of measuring with a ruler and reducing infection caused by repeated use of the ruler. The utility model is ingenious in design, convenient and practical, and can complete the pressure measurement with one bladder pressure measurement extension tube, has a good tight connection effect with the urinary catheter, is easy to operate, and improves work efficiency.

In order to further make the connection between the catheter joint 2 and the catheter more tightly, the outer surface of the connecting section 22 is uniformly distributed with annular protrusions 222 along the axial direction or the outer surface of the connecting section 22 is uniformly distributed with several arc-shaped protrusions , can increase the friction force and squeezing force at the connection between the connecting section and the urinary catheter, and has the effect of anti-slip and tightening.

In order to ensure hygiene, the positioning section 21 is provided with external threads, and the first cap 4 covers the catheter joint 2 and is threadedly connected to the positioning section 21 . During measurement, the patient needs to use the iliac crest and axillary midline as the standard for zero adjustment. In order to facilitate the zero point positioning, an indicator 12 is provided at the zero point on the main body 1 of the connecting pipe, which is perpendicular to the pressure scale mark 11 . In this embodiment, the indicator is in the shape of a straight rod, and the indicator 12 is provided with a connecting through hole, which can be sleeved at the zero point of the main body 1 of the connecting pipe through the connecting through hole through a tie strap. The indicator 12 can facilitate the operator to align the patient's iliac crest and axillary midline, and improve the accuracy of measurement.

The syringe connector 3 is used to connect the syringe, the inner diameter of the syringe connector 3 is equal to the outer diameter of the syringe nipple, and the syringe nipple can be matched with the syringe connector, which can avoid leakage when injecting physiological saline. The outer diameter of the syringe connector is larger than the outer diameter of the connecting tube body. Both the main body of the connecting pipe and the joint of the catheter are provided with inner holes. To ensure hygiene, a second cap 5 is provided on the syringe connector 3 . Specifically, the outer surface of the syringe joint 3 is provided with external threads, and the second cap 5 is threadedly connected with the syringe joint 3 . The second cap 5 is provided with a conical plug 51 matching the inner diameter of the syringe connector 3 . A switch clip 6 is sleeved on the main body 1 of the connecting pipe. The switch clip 6 is provided with a wide slot 61 and a narrow slot 62 that communicate with each other. The size of the wide slot 61 is larger than the outer diameter of the main body 1 of the connecting tube. When the connecting pipe main body 1 is located in the wide groove 61 , the connecting pipe main body 1 is in a conducting state, and when the connecting pipe main body 1 is located in the narrow groove 62 , the connecting pipe main body 1 is in a closed state. The syringe connector 3 can also be provided with two hooks 31 symmetrically. The main body of the connecting tube is hung on the infusion stand by hooking the hooks with the lanyard, which frees the hands of the medical staff and facilitates the medical staff to read the scale value corresponding to the concave liquid surface.

The working process of this embodiment: open the first cap 4 and the second cap 5, insert the syringe nipple into the syringe connector 3, inject the physiological saline into the disposable bladder pressure measuring tube, and empty the air for backup; the patient is in a supine position, if the patient has been inserted If there is a catheter, empty the bladder and clamp the catheter; if the patient does not have a catheter, insert the catheter aseptically, empty the bladder, and clamp the catheter; measure the one-time bladder pressure. The connecting section 22 of the catheter joint 2 of the pipe is inserted into the conical hole connection of the catheter, and the end face of the positioning section 21 is in contact with the catheter; The nipple is inserted into the syringe connector 3, and 25-30ml of 37-40°C saline is injected into the bladder with a syringe, the syringe is removed, and the main body 1 of the connecting tube is adjusted to the narrow groove 62 of the switch clip 6, and the bladder after 30-60S Muscle relaxation; adjust the indicator 12 to point to the midline of the patient's iliac crest and axillary, and use the midline of the iliac crest as the standard to zero, adjust the main body 1 of the connecting tube to the wide groove 61 of the switch clip 6, so that the main body 1 of the connecting tube is communicated with the atmosphere. When the liquid level of the main body 1 of the connecting tube does not drop until there is a slight fluctuation, the scale number corresponding to the concave surface of the liquid level in the patient's end-expiratory manometry tube is the intravesical pressure. This embodiment is a disposable structure, and has the characteristics of safety and hygiene.

An embodiment of the present invention has been described in detail above, but the content is only a preferred embodiment of the present invention, and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present utility model should still belong to the scope of the patent of the present utility model.

Claims (9)

1. The disposable bladder pressure measuring extension tube is characterized by comprising a connecting tube main body, a catheter joint arranged at one end of the connecting tube main body and an injector joint arranged at the other end of the connecting tube main body, the catheter joint comprises a positioning section and a connecting section for connecting the catheter, one end of the positioning section is connected with one end of the connecting pipe main body, the outer surface of the connecting section is a conical surface, the large end of the connecting section is connected with the other end of the positioning section, the connecting part of the catheter is a tapered hole, the size of the large end of the connecting section is equal to that of the tapered hole, the size of the small end of the connecting section is larger than that of the small end of the tapered hole, the outer diameter of the positioning section is larger than that of the large end of the connecting section, all be equipped with along axial 3 openings from tip department on the linkage segment, be equipped with pressure scale sign in the connecting pipe main part.

2. The disposable bladder pressure measurement extension tube of claim 1, wherein: the outer surface of the connecting section is uniformly distributed with annular bulges along the axial direction.

3. The disposable bladder pressure measurement extension tube of claim 1, wherein: the outer surface of the connecting section is uniformly provided with a plurality of arc-shaped bulges.

4. The disposable bladder pressure measurement extension tube of claim 2 or 3, wherein: the positioning section is provided with external threads, and the first cover cap covers the catheter joint and is in threaded connection with the positioning section.

5. The disposable bladder pressure measurement extension tube of claim 4, wherein: and an indicator mark is arranged on the connecting pipe main body and is perpendicular to the zero point of the pressure scale mark.

6. The disposable bladder pressure measurement extension tube of claim 4, wherein: the inner diameter of the syringe joint is equal to the outer diameter of the syringe nipple, and the syringe joint is provided with a second cover cap.

7. The disposable bladder pressure measurement extension tube of claim 6, wherein: the outer surface of the syringe joint is provided with external threads, and the second cap is in threaded connection with the syringe joint.

8. The disposable bladder pressure measurement extension tube of claim 7, wherein: and a conical plug matched with the inner diameter of the syringe connector is arranged in the second cover cap.

9. The disposable bladder pressure measurement extension tube of claim 1, wherein: the connecting pipe main part is sleeved with a switch clamp, and the switch clamp is provided with a wide groove and a narrow groove which are communicated with each other.

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